Picture lifting method



Oct 31 l967 B. D. MORGAN ETAL 3,350,254

PICTURE LIFTING METHOD Filed Oct. 2, 1964 BuRToN D. MORGAN BYJOHNMQUESTEL @adam fduwm/ ATTYS.

3,350,254 PICTURE LIFTING METHOD Burton D. Morgan, Hudson, and John M.Questel, Cuyahoga Falls, Ohio, assignors to Morgan Adhesives Company,Stow, Ohio Filed Oct. 2, 1964, Ser. No. 401,051 Claims. (Cl. 156-235)ABSTRACT OF THE DISCLOSURE A method for picking up printed data carriedon a paper sheet by pressing against the sheet a laminate comprised ofan inert, transparent plastic `base sheet and a homogeneous layer ofoil, resin, and an elastomer, which layer wets the printed data andfrees it from the paper sheet to allow the Iprinted data to adhere tothe laminate as it is peeled away from the paper sheet.

. purposes.

The general object of the present invention is to provide a novel andimproved method of lifting or picking up a picture from, for example, aclay coated sheet of paper on which the picture appears, and forultimately presenting such picture, or printed data in a transparentlaminate provided by the invention.

Another object of the invention is to provide a special oil-wetting typeof an adhesive layer that is carried by a plastic film and which isadapted to pick up printed data carried on a clay coated paper sheetwhereby when the clay coating is washed away from the paper sheet bybeing wetted with water, then the oil-elastomer-resin layer will carrythe printed data when separated from the paper sheet on which theprinted data initially appeared.

Another object of the invention is to provide a relatively easilypracticed, inexpensive method by which a picture can be lifted from -acoated surface of a paper sheet and then be used for other purposes, asdesired.

The foregoing and other objects and advantages of the invention will bemade more apparent as the specification proceeds.

Attention now is particularly directed to the accompanying drawings,where:

V- orare brought into surface contact with each other, and

the step of wetting the paper sheet with water is also indicated inFIGURE 3;

FIGURE 4 shows the structure produced when the paper sheet as shown inFIGURE 3 has been withdrawn l'J'niteci States Patent O TCC fromassociation with the remainder of the laminate after having been wettedthoroughly with water; and

FIGURE 5 is an enlarged fragmentary verticalsection through the finallaminate produced by the method of the invention and with thetransferred or lifted picture being provided between the protectivelayers of the laminate.

When referring to corresponding members as shown in the drawings andreferred to in the specification, corresponding numerals areused tofacilitate comparison therebetween.

Generally speaking, the present invention relates to a novel method oflifting a picture from a coated sheet of paper and the method comprises,as one embodiment, the steps of applying a layer of oil-plasticizedelastomer-resin mixture to a transparent plastic film, bringing suchelastomer-resin layer into engagement with a printed surface of a -claycoated paper sheet, allowing the elastomer-resin layer to wet theprinted surface of the paper sheet, wetting the paper sheet with waterfrom the surface opposite to the printed surface thereof to release theclay coating thereon and thus free the printed matter which thereafteradheres to the elastomer-resin layer, drying the plastic film andelastomer-resin layer, and applying an adhesive coated surface of atransparent plastic lilm to the printed matter carrying surface of theelastomer-resin layer to form a protective layer thereover and to form alaminate in which the picture transferred from the paper sheet nowappears.

With reference to the details of the structure shown in the drawings,the novel laminate of the invention is indicated as a whole by thenumeral 1. This 4laminate 1 comprises the sheet of a transparent,relatively inert plastic material, which sheet or plastic film 2 may bemade from a vinyl material, a vinyl acetate, or Mylar (polyethyleneterephthalate), or equivalent material and it has aixed to one surfacethereof a layer 3 of an oil-plasticized elastomer-resin mix. This layer3 may, for example, be made from 21 parts by weight of a polybutene oil,100 parts'of an elastomer such as that sold under the trademark name ofVistanex by Enjay Chemical Company of New York, New York, which ispolyisobutylene composition, and 64 parts by weight of Piccolyte S 100,which is a terpene hydrocarbon resin sold by Pennsylvania IndustrialChemical Corporation of Clairton, Pennsylvania.

This resin supplies adhesive characteristics to the layer, and theelastomer is used to help to retain the mineral oil in the homogeneouslayer carried by the plastic sheet 2. In making this layer 3 upon theplastic sheet 2, initially the various ingredients are brought toget-herand are blended into a homogeneous mix so that a layer which may be, forexample, several mils in thickness can be applied by conventional meansto the plastic sheet 2 which likewise normally is only a few mils inthickness. It should be realized that any oil-elastomer-resin layer that-has equivalent or similar physical properties so that the compositiondescribed may be used in the practice of the invention. It is believedthat the use of the mineral oil as a plasticizer in this materialprovides some good mobility of the molecules in the layer to facilitateywetting or contacting surfaces with which such layer is brought intocontact, all as hereinafter describediin-more detail.

The laminate 1 of the invention is particularly adapted for use intransferring a picture orprinted data from one surface onto another orelse to present such data or printed matter under different conditionsfor use. Thus, FIGURE could be'transferred to the new or in thedifferent laminates layers are very thin, and

l move and/ or slowly flow to bleed into 3 2 shows a paper sheet 4 thatis of conventional composition and has a water soluble material, such asa clay coating or layer 5, on at least one face thereof. This claycoating or layer 5 vhas had certain printed indicia, or a picture 6applied thereto.

In the practice of the invention, the laminate 1 is brought into contactforcibly with the layer of printed data 6, which action can be done byhand, or by placing r passing such assembly through a suitableconventional unit such as a pair of wringer, or pressure rolls. Theresultant laminate shown in FIGURE 3 is then permitted to stand forsuitable length of time and in this period the oil present in the layer3 wets out of the layer 3 into good intimate contact with the pigmentsand matter forming the printed data or layer 6 so as to be in physicalcontact and engagement therewith. After such interval or oil wetting ofthe printed layer 6 has occurred, then the exposed surface of the papersheet 4 is suitably wetted with water which passes through the sheet andloosens the clay layer 5 from the paper sheet 4 so as to permit theprinted data 6 initially appearing on the clay layer 5 to be removedfrom association with the paper sheet by merely stripping the waterwetted paper sheet from the laminate. Next the remainder, or any of theclay coating that may remain in association with the printed data 6 astransferred to the layer 3, may be washed therefrom by Water by emersionor other careful application of water.

The oil and elastomer mixture comprising the layer 3 tends to continueto work into and flow through the layer of printed data l6 and thisaction is stopped and the laminate shown in FIGURE 4- provided for otheruse by applying a protective adhesive-coated sheet 2 to the transferredprinted data. Thus', FIGURE 5 shows the final laminate of the inventionwhich laminate shows that a second plastic film 7 having a suitabletransparent pressure sensitive adhesive layer 8 thereon is brought intoengagement with the layer 6 of printed data, or picture so as to form aprotective surface thereover. This laminate shown in FIGURE 5 then canbe used, lfor example, in a projector so as to project the printed dataor picture 6 appearing therein, or if desired, the laminate shown inFIGURE 4 could be applied to another paper carrier sheet, vor the like,which has a pressure sensitive adhesive thereon and merely be aflixedthereto by suitable pressure application to the exposed surface of suchsheet whereby the initial layer of'printing 6 appearing on the sheet 4different carrier paper sheet on which the printed indicia or picture isdesired to appear.

It will be realized that the thickness of the various layers of theinvention are shown in drawings and that all of these that no realspacing exists between the layer 3 and the layer 6 of printed data, suchas when the laminate shown in FIGURE 3 is provided.

In making the oil-plasticized elastomer-resin mix, the amount of mineraloil used may be varied Ifrom about 11 to about 3l parts by weight toabout 44 to about 84 parts by weight of the adhesive terpene resin inrelation to 100 parts dry weight of the elastomer. The oil and resin areused proportionally. In the range stated, the oil will be retained inthe elastomer and a homogeneous mixture can be obtained from which theoil and elastomer may a layer of printexaggerated forms in the ing, asdescribed hereinbefore.

From the foregoing, it is believed that it will be seen that a novel andimproved method of transferring a picture, or other printed data, fromone sheet to another carrier sheet is provided by the invention and thatan improved laminate has been provided for use in picture transfer, orlifting processes. Thus, it is thought that the objects of the inventionhave been achieved.

While one complete embodiment of the invention'has been disclosedherein, it will be appreciated that modifi- '4 cation of this particularembodiment of the invention may be resorted to without departing fromthe scope of the invention as defined in the appended claims.

What is claimed is: 1. A method of lifting a picture from a clay coatedsheet of paper comprising the steps of applying a mixture of oil, arubber elastomer, and resin to a transparent vinyl film, applying thelayer formed by the mixture to a printed surface of a clay coated papersheet, maintaining the layer formed by the mixture against the printedsurface to allow the oil present in the mixture to wet out of the layerand into contact with the printed data of the paper sheet, wetting theexposed surface of the paper sheet with water to release the claycoating thereon, the printed data remaining adhered to the layer formedby the mixture, removing the paper sheet, washing the printed dataadhered to the layer formed by the mixture with water to remove any claythereon, drying the resultant laminate, and apply an adhesive coatedsurface of a transparent vinyl film to the printed data carrying surfaceof the layer formed by the mixture to form a protective layer thereover.2. A method of lifting printing from a clay coated sheet of papercomprising the steps of forming a homogeneous mineral mixture of oil,polyisobutylene elastomer, and terpene resin, applying a layer of themixture to a transparent polyethylene terephthalate film to form alaminate, applying such mixture layer of the laminate to a printedsurface of a clay coated paper sheet, maintaining the laminate againstthe paper sheet to allow the mixture layer to wet the printed surface ofthe paper sheet, wetting the exposed surface of the paper sheet withwater to release the clay coating thereon away from the printed matterof the paper sheet, which printed matter adheres to the layer of thelaminate formed by said mixture, removing the paper sheet, washing theprinted matter adhered to the laminate with water to remove any claythereon, and applying an adhesive coated surface of a cover sheet to thelaminate over the printed matter adhered thereto to form a protectivelayer thereover. 3. A method as in claim 2 including the steps offorming said mixture from about 11 to 31 parts of mineral oil, fromabout 44 to 88 parts of the terpene resin, in relation to about 100parts of the polyisobutylene elastomer, all parts being by weight. 4. Amethod of lifting a picture from a clay coated sheet of paper comprisingthe steps of applying a homogeneous layer of a mineral oil plasticizedrubber-elastomer-resin mixture to a transparent, inert plastic film,applying such oil-elastomer-resin layer to a printed surface of a claycoated paper sheet, allowing the oil-elastomer-resin layer to wet theprint on a surface of the paper sheet. wetting the paper sheet withwater to release the clay coatingV thereon and thus free the printedmatter which adheres to the elastomer-resin layer, removing the papersheet, and applying an adhesive coated surface of a transparent plasticfilm to the .printed matter carrying surface of said oil-elastomer-resinlayer to form a protective layer thereover. 5. A method of lifting apicture from a clay coated sheet of paper comprising the steps ofapplying a homogeneous layer of a mineral oil plasticizedrubber-elastomer-resin mixture to a trans- 6 parent, inert plastic filmmade from a material from said oil-elastomer-resin layer to form aprotective the group consisting of vinyl, vinyl acetate, and polylayerthereover. ethylene terephthalate, applying such ol-elastomer-resinlayer to a printed sur- References Clfed face of a clay coated papersheet, UNITED STATES PATENTS allowmg the oll-elastomer-resrn layer toWet the print 5 2,303,812 6 12/1942 DeBeu 156-289 XR on the surface ofthe paper sheet, 2 416 673 3/1947 A 117 3 5 wetting the paper sheet withWater to release the clay 3014828 12/1961 Rlelse 16151'8 coatlng thereonand thus free the prlnted mater Whlch 3,236,677 2/1966 Bradstreet 117 685 adheres to the elastomer-resin layer,

removing the paper sheet, and 10 applying an adhesive coated surface ofa transparent EARL M' BERGERT Primary Exammer plastic film to theprinted matter carrying surface of M L- KATZ, Assistant Exml'neh

1. A METHOD OF LIFTING A PICTURE FROM A CLAY COATED SHEET OF PAPERCOMPRISING THE STEPS OF APPLYING A MIXTURE OF OIL, A RUBBER ELASTOMER,AND RESIN TO A TRANSPARENT VINYL FILM, APPLYING THE LAYER FORMED BY THEMIXTURE TO A PRINTED SURFACE OF A CLAY COATED PAPER SHEET, MAINTAININGTHE LAYER FORMED BY THE MIXTURE AGAINST THE PRINTED SURFACE TO ALLOW THEOIL PRESENT IN THE MIXTURE TO WET OUT OF THE LAYER AND INTO CONTACT WITHTHE PRINTED DATA OF THE PAPER SHEET, WETTING THE EXPOSED SURFACE OF THEPAPER SHEET WITH WATER TO RELEASE THE CLAY COATING THEREON, THE PRINTEDDATA REMAINING ADHERED TO THE LAYER FORMED BY THE MIXTURE, REMOVING THEPAPER SHEET, WASHING THE PRINTED DATA ADHERED TO THE LAYER FORMED BY THEMIXTURE WITH WATER TO REMOVE ANY CLAY THEREON, DRYING THE RESULTANTLAMINATE, AND APPLY AN ADHESIVE COATED SURFACE OF A TRANSPARENT VINYLFILM TO THE PRINTED DATA CARRYING SURFACE OF THE LAYER FORMED BY THEMIXTURE TO FORM A PROTECTIVE LAYER THEREOVER.